Master Lock Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers, Weather Resistant Automotive Hitch Lock with Keys, 377KA

Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers Trailer lock is best used for vehicles, trailers, and RVs Trailer coupler lock features advanced locking mechanism to resist picking and prying Trailer hitch lock is constructed from zinc to resist rust and corrosion One trailer coupler lock, two keys Brand Master Lock Special Feature Weather Resistant Lock Type Key Lock Item dimensions L x W x H 5.6 x 4.3 x 2.8 inches Material Zinc